qcacld-3.0: enable srri/drri on ddr

The SRRI/DRRI can be read from DDR instead of doing an
actual hardware read. This mechanism is compiled out by
default.

Change-Id: I8fc6c8817b5958f3d00b47ccd3dba36b354097e8
CRs-Fixed: 932344
diff --git a/core/hif/inc/hif.h b/core/hif/inc/hif.h
index dd2c898..ab99b62 100644
--- a/core/hif/inc/hif.h
+++ b/core/hif/inc/hif.h
@@ -314,6 +314,7 @@
 	cdf_spinlock_t irq_lock;
 	uint32_t ce_irq_summary;
 #endif
+	uint32_t *vaddr_rri_on_ddr;
 };
 
 typedef enum {